UnScramble this Word: r d g s u e t r?

Questions

In 1968 US Olympic Committee suspends Tommie Smith and John Carlos for giving "---------- " salute as a protest during victory ceremony. ?

In 1812 ---------- begins his retreat from Moscow. ?

In 1812 Napoleon begins his retreat from---------- . ?

In 1845 ---------- 's opera Tannhauser performed for 1st time. ?

In 1845 Wagner's opera ---------- performed for 1st time. ?